Engine



H. B. KING.

ENGINEL A'RPLICATION FILED NOV-1.1, 1919.

$ ,421,254. Patented June 27; 1922.

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H. B. KING".

ENGINE.

APPLICATION FILED Nov. 11, 191.9.

Patented June 27 19-22.

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PATENT DFFE'QE.

HOSEA B. KING, OF NEAR DESMET, IDAHO.

ENGINE.

Application filed November 11, 1919'.

To all whom it may concern:

Be it known that I, Hosea B. KING, a citizen of the United States, residing near Desmet, in the county of Benewah andState of Idaho, have invented new and useful Improvements in Engines, of which the following is a specification.

This invention relates to engines of the internal combustion type, the object in view being to provide novel driving mechanism used in conjunction with two cylinders and pistons mounted for reciprocatory movement therein, each of the cylinders comprising heads at the opposite ends thereof and two end combustion chambers, the pistons acting on the double action or impulse principle and explosions taking place alternately in opposite ends of each cylinder. The explosions in the two cylinders occur successively and are productive of a comparatively even and uniform flow of power to'the crank shaft of the engine.

A further object of the invention is to provide in conjunction with a twin cylinder engine, simple exhaust valve mechanism and means positively controlling the exhaust valve of both cylinders, the valve connections operating in connection with a single cam shaft and two cams only as will hereinafter appear.

lVith the above and other objects in view the invention consists in the novel construction, combination and arrangement herein fully described, illustrated and claimed.

In the accompanying drawings:

Figure 1 is a plan view of the improved engine.

Figure 2 is a side elevation of the same.

Figure 3 is a vertical cross section through the engine on the line 33 of Figures 1 and 2.

The improved engine comprises two cylinders 1 arranged side by side and each containing a reciprocatory piston 2 from which extends a piston rod3 connected to a sliding cross head 4 mounted between parallel guides 5, a connecting rod 6 extending between each sliding cross head 1 and one of a pair of cranks 7 formed on a crank shaft 8, the cranks 7 being set oppsit-ely each other or 180 degrees apart as shown in Figure 1.

Each of the cylinders 1 is provided with two heads 9 and 10 at the opposite ends thereof. In each head is formed an intake chamber 11 and an exhaust chamber 12, said chambers being controlled respectively by an ifi e en t r nt- Patented June 27, 1922.

Serial No. 337,184.

intake valve 13 and an exhaust valve 14: as shown in Figure 3. Both of the valves .13 and let arenormally held seated by means of valve closing springs 15 and 16 disposed around the stems 17 and 18 of said valve. Each of the exhaust valves 14 is positively operated and controlled by means of a bell crank lever or rocker arm 19 having a. rock shaft portion or journal 20 which is mounted in bearing. supports 21 connected with the frame of the engine. From each of the rocker arms 19, a link rod 22 extends to another bell crank lever 23 pivotally mounted at 24 on the engine frame and carrying an anti-friction roller 25 which works against the face of the cam 26 fast on a cam shaft 27 parallel to the engine shaft 8 and actuated by and from said shaft 8 by means of gears 28 and 29, the gear 28 being one half the diameter of the gear 29 so as to drive the cam shaft 27 at one half the speed of the engine shaft.

The other cylinder head 9 of each cylinder has the intake and exhaust openings in the outer wall thereof and the exhaust valve 30 in the outer end of each cylinder is normally closed by means of a spring 31 surrounding the stem 32 of said valve. The valve 30 is opened by means of a rocker arm 33 which is pivoted upon a support 34: extending from the adjacent head of the cylinder as shown in Figure 1, the rocker arm 32 being in turn operated by means of a link rod 35 carrying at its other end a roller 36, which end of the link rod 35 is supported by a swinging arm or link 37 The rollers 25 and 36 are located about 90 degrees apart so that the valve actuated thereby will be properly timed by the action of the single cam 26 which cooperates with both of the rollers 25 and 36. The exhaust chambers or passages 12 are connected to a common exhaust manifold 38 while the intake passages 11 are adapted to be connected to one or more carbureters by means of the elbows 39.

From the foregoing description taken in conjunction with the accompanying drawings, it will now be seen that explosions occur in both ends of each cylinder and at opposite sides of the respective pistons. It also will be seen that each cylinder head is provided with a positively operated exhaust valve and that all four of said valves are operated by means of two cams only on a single cam shaft directly geared to the crank shaft of the engine. The result is an ex- In an internal combustion engine, a plurality of cylinders provided with heads at the opposite ends thereof and having inlet and exhaust ports formed therein, a crank shaft provided with oppositely directed cranks, reciprocatory pistons located in said cylinders, a plurality of parallel guides, cross heads engaging said guides. rods connected to said cross heads and to said pis tons, connecting rods pivotally secured to said shaft, a cam shaft locatedadjacent to said crank shaft, a plurality of cams projecting therefrom, a relatively small gear secured to said crank shaft, arelatively large gear secured to said cam shaft and meshing With the small gear, spring influenced valves'engaging said inlet and exhaust ports, stems extending from said valves, rocker arms engaging tWo of the stems at one end of said cylinders, supports carried by said guides, bell crank levers pivotally secured to said supports and engaging two of the stems adjacent to the opposite ends of said cylinders, pivotally mounted bell crank levers located adjacent to'said camshaft, rods connecting the first and last mentioned bell crank levers, anti-friction rollers carried by the last mentioned bell crank levers and engaging said cams, rods extending from said rocker arms, and anti-friction rollers carried by the outer ends of said rods and engaging said cams.

In testimony whereof I aflix my signature.

HOSEA B. KING. 

